Window regulator mechanism



July 28, 1931. A. c. ANDERSEN;

WINDOW REGULATOR MECHANISM 2 Sheets-Sheet 1 Filed May 14, 1928 IHVEHTORAndrew Chr/lstian lndensen {QM-m1,

ATTORNEY July 28,1931. A. c. ANDERSEN 1,816,166

WINDOW REGULATOR MECHANISM Filed May 14, 1928 I Sheets-Sheet 2 I I HV ET1 TOR flndr'ew Chris tian flndensen J5; Km

ATTOR H EY Patented July 28, 1 931 srArEs PATENT OFFICE AN RE CHRISTIANANDERSEN, or DETROIT, MIC IGAN, ASSIGNOR To TERNSTEDT MANUFACTURINGCOMPANY, or DETROIT, MICHIGAN, A CORPORATION or MICH- IGAN' WINDOWREGULATOR MECHANISM:

Afllicationfiled May 14,

This invention relates to a window regulator mechanismwhich is adaptedfor use 1n regulating andco'ntrollingi the wlndows of an automobile; r

The:invention aimsto provide a window regulator machanlsm which nvolvesan operable connection which is rreversible;

I more Qspecifically, the mechanism involved is and showing in dottedlines several such as to effect a positive'lock against movement of thewindow. after it has been adjuste'd to any given position, but which atthe same time permits the window to be readily adjusted by the operationof a suitable regulator handle or the like.

In the accompanying drawings: I I Fig. 1 is a side elevation of themechanism illustrating the same connected to a window positions ofadjustment. 7

Fig. 2 is a view'showing the operable connection of the mechanism, thisview being taken from the opposite side of Fig. 1.

Fig. 3is a sectional view taken substantially on line 3-3 of Fig. 1.

Figs. sand 5 are detail views of one of the operable parts.

Figs. (Sand 7 are views illustratlng a modified form of the invention,these two fig ures showing the operable connection in differentpositions.

Fig. 8 is a detail view of the driving connection of the form of Figs.land 2, ilustrating the conection in a position different than thatshown in Fig. 2.

.ment or rack 4 having teeth 0 The mechanism may be mounted in a door orthe side of an automobile body on a suitable board 1, customarily termedthe lockboard. The mechanism includes a suitable supporting plate 2which may be secured to the lockboard as by means of screws 3 takenthrough suitable apertures. A toothed segis pivotally mounted to theplate 2 as by means of stud 6.v Secured to the segment is an arm 7having a suitably shaped stud or roller 8 which engages in a track orohannel-9 secured to the bottom of the Window 10.

It is to be appreciated that as the segment is moved rotatably upon itsmounting, the

arm 7 effects a raising and lowering of the 1928. Serial No. 277,491.

window, several positions of which are shown in dotted lines in Fig. 1.The stud 6 may be fixed to rotate with the segment, and a coil spring 11may be employed to counterbalance the weight of the window.

ranged pins 16 and 17. This operating part may be journaled in a cupshaped member 18 which may be flanged as at 19 and secured to the plate2 by suitable screws orthe like 2O.- The plate 2 may be a stamping andmay be pressed out to provide a recessed formation 21 torreceiving theflange or the cup.

A" suitable operating handle 23 is fixed'to the exposed end of themember 15'. I

As shown in Figs. 2 and 3 the pins 16 and 17 are positioned so as toengage with the teeth 5 on the segment. For the purpose of providing asuitable cover or protector for the point of engagement the plate 2 maybe stamped out as at 22. In the operation ot the mechanism, rotation ofthe handle 23 Wlll cause the pins to alternately engage the segmentteeth and move the segment. The

teeth are cut into the segment a sufficient distance to permit the pinsto move down between two teeth, without binding against the bottomof thefurrow formed by the two teeth, This is illustrated in Fig. 8.

16 and 1( alternately engage teeth on the segment and give it a rotativemovement around its mounting.

When the window is in any given adjust- Upon continued rotation of thehandle the pins ment, the two pins serve to positively lock I the windowfrom movement by forces applied to the window, other than through thehandle 23. The locking position'ofthe pins is shown in Fig. 2. l Herethe two pins are lined up substantially on the pitch line of the teeth,or in other words, on a dead center line. Any force which tends torotate the segment is overcome bythe pins, and this force creates noturning moment on the part 15.

In actual operation it may happen that when the window is adjusted thepins take the position shown in Fig. 8. 'Under this condition the windowmay jar down a trifle until the pins become aligned, whereupon nofurther movement is permitted. This trifle movement of the winclowisnotsuflicient to "interfere with the practicability of the mechanism. vVhenthe window is raised into an entirel closed osition its -u oer ed eisconfined in a channel of some depth, and the trifle of movementpermitted by" the pins will not. permit the-window to move out of thechannel. I

Inflorder to limit the extreme movements of the segment,- and preventitfrom discon- [The modified form nection with the pins, the segment maybe provided near each end with a recess 25 of less depth than theteeth.When one ofthe pins 16 orfl7fmoves into'this recess further rotation ofthe operating handle is prevented' because the recess isnotdeep enoughto permit theeccentric'pin to. complete its circle of movement.

of the invention, as shown in Figs. '6 and .7, embodies a segment 4aprovided with internally extending teeth 5; as distinguished fromtheform just clescribed having externalteeth. In this form there is arotating operating element 15a provided with eccentric pins 16a and 17 awhich are associated with the teeth in a manner similar to the manner inwhichthe teeth and segment are associated in the above deteeth on thesegment to regulate the window,

said driving element being on an axis located with respect to the gearteeth so that the two pins may simultaneously engage between the teethon the segment with a line drawn throughthe center of the pins beingsubstantially on the pitch line whereby force applied to the segmentwhich tends to rotate the same is overcome by the pins withsubstantially no turning moment on the driving member to hold thewindowin any given position of adjustment. i

In testimony whereof ANDREW CHRISTIAN ANDERSEN.

I affix signature;

scribed form. 'In Fig. 6 the teeth are shown in looking position,whereas in Fig. 7 the pins-are shown [in one position which tliey Iclaim: v. s;

"l. A window regulator mechanism comprising, an adjustable memberprovided with rack teeth, means connecting'the adjustable assume during.operation.

member with a window, a rotatable driving element having a pair ofec'centrically dis,-

I .so that the rack is moved'and the window adjusted upon actuation ofthe driving memher, the depth of the teeth being sufficient to posedpins for engaging the teeth in the rack 'perinit'the eccentric pins tomove in between I any two given'teeth, said. rack being proi vided withairecess beyond the end tooth,

which recess is of a depth; less than the depth of the teeth so thatwhen the rack. approaches the end of its movement an eccentric pin mayengage in such recess-whereby further actuation oftheparts is prevented.g 2. A regulator mechanism torfautomobile wlndows or the hke [comprisingin combination, 'a'pivotally mounted segment having gear: teeth thereon,a segment arm connect mg the segment with a window, a driving elementhaving a I handle thereon journaled

